Grass Valley Kameleon HD Multi-Function Modules v.3.2.0 - Manual (Page 55)

KAM-HD-MULTI—Instruction Manual 55
Kameleon HD Links and Web Pages
Delay Wrap Position
This indicator will display with a blue bar, the fraction of the final frame of
actual video delay through the frame sync.
For example, with 1080i video and Minimum Delay Mode not selected, if
600 lines is entered by the user, that actual delay through the module will
be anywhere from about 1 to 2 frames depending on the following condi-
tions:
a. If the module is in Input timing mode, the delay through the
module will be about 1.5 frames, and the Delay Wrap Position will
be at about 50% of full scale.
b. If the module is in Frame Reference timing mode, the delay through
the module will be about 1.5 frames if the input video has zero
delay with respect to the genlock reference frame position, and the
Delay Wrap Position will be at about 50% of full scale. As this input
video delay with respect to the genlock reference frame position is
changed from -0.5 to +0.5 frame periods, the delay through the
module will change from about 1 to 2 frame periods, with the Delay
Wrap Position changing from about 0 to 100% of full scale.
In summary, the Electrical Length of the module can be estimated as the fol-
lowing:
• 1 frame minus 5 lines (Minimum Delay Mode not selected) + Delay
Wrap Position (% of full scale) X (1 frame period), or
• ~ 300 pixels (Minimum Delay Mode selected) + Delay Wrap Position
(% of full scale) X (1 frame period).